NCT04650880Recruiting
Effect of Vitamin D on Ovulation Rate in Women With Polycystic Ovary Syndrome
A Randomized Double-blind Controlled Trial on the Effect of Vitamin D on Ovulation Rate of Women With Polycystic Ovary Syndrome
Source: ClinicalTrials.gov · Last updated 14 May 2024 · Not updated for over 12 months - ask the site whether it is still open
Brief summary (registry, in English)
This is a randomized double-blind controlled trial on the effect of vitamin D supplementation to assess the ovulation rate of women with polycystic ovary syndrome (PCOS) and other reproductive, endocrine and metabolic outcomes after one year of treatment.
- Status (registry)
- Recruiting
- Study type
- Interventional
- Enrollment
- 220 (estimated)
- First submitted
- 19 Nov 2020
- Start date
- 26 Jan 2021
- Primary completion date
- 31 Dec 2024
- Lead sponsor
- The University of Hong Kong
- NCT number
- NCT04650880
What you commit to
- Study type: Interventional
- Planned participants: 220
- From 26 Jan 2021 to the primary completion date, 31 Dec 2024
- 3 sites in 1 country
- Visits and tests: ask the trial team, the registry does not list them
Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.
Who cannot take part
Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.
Prior treatment
- Use of hormonal medication (including contraception) within 3 months prior to study inclusion, except the use of a progestogen to induce withdrawal bleeding every 3 months
- Use of insulin-sensitizing drugs, lipid lowering drugs or anti-hypertensive
- Anticipated to use the above medications in the coming one year
Other illness
- History of any medical condition or medications that may predispose to vitamin D sensitivity, altered vitamin D metabolism and/ or hypercalcemia, including active tuberculosis or current therapy for tuberculosis, sarcoidosis, history of renal/ ureteral stones, parathyroid disease, renal or liver failure or current use of anti-convulsants
- Known type 2 diabetes mellitus
Lab values
- Abnormal blood calcium level
- For those on supplements, we asked them to stop their own supplements.
Other
- Refusal to join the study
Who the study is looking for
- Premenopausal
- Aged 18-40 years
- Irregular long menstrual cycles (\>35 days)
- PCOS according to the Rotterdam criteria
- Agree for transvaginal ultrasound
Age in the registry: 18 years to 40 years · Sex: Female · Does not accept healthy volunteers
Sites (3)
Sites in registry order. Pick your city on the disease page to sort them by distance.
| Site | City | Country | Site status |
|---|---|---|---|
| Princess Margaret Hospital Coordinator of this site? Confirm its status | Hong Kong | Hong Kong SAR China | Not yet recruiting |
| Kwong Wah Hospital Coordinator of this site? Confirm its status | Hong Kong | Hong Kong SAR China | Recruiting |
| Queen Mary Hospital University of Hong Kong Coordinator of this site? Confirm its status | Hong Kong | Hong Kong SAR China | Recruiting |
This page is information, not medical advice. Discuss any trial with your doctor.